G5-x4 cam
Thread Starter
Heel & Toe
Joined: Jan 2006
Posts: 24
Likes: 0
From: colts neck new jersey
G5-x4 cam
Does anyone run a G5 x4 cam for roadrace only cars and is there much of a low end torque loss.I have a 2003 Z06 and want a good race package with either 205 AFR or 215 Etp heads.What are your thoughts and what rwhp can I expect also with LG longtubes and no cats.Thanks
Last edited by mwferrari; Jan 25, 2006 at 12:19 PM.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Originally Posted by mwferrari
Does anyone run a G5 x4 cam for roadrace only cars and is there much of a low end torque loss.I have a 2003 Z06 and want a good race package with either 205 AFR or 215 Etp heads.What are your thoughts and what rwhp can I expect also with LG longtubes and no cats.Thanks
Evey one has different opnions. Dont let the drag race guys influance you.
the G5X4 may be way too much for road racing but the G5X2 cam or the GMPP Grand am cam
Here is a good thread on the topic.
http://ls1tech.com/forums/showthread.php?t=422520
Le Mans Master
Joined: Sep 1999
Posts: 5,464
Likes: 2
From: Private
I am interested to see as well. I am going with a G5X3 and was told by Lou that it is absolute great for road race. I asked about the X4 and was told that it makes more power, but street drivability is just not there. But if your looking at race only, I say go for it! I am told the X3 makes more power/torque everywhere in the rpm range compared to stock, but just makes a lot more power around 3300 and up. I don't know from personal experience, but with this information, I would assume an X3 would potentially come on a few hundred rpm later (maybe 3800). From the numerous dyno sheets I have seen, the X3 makes peak power up to around 7000 rpm. The X4 probably goes even higher, but how high do you want to go, and I would imagine you could have lots of issues with springs. You probably would have to replace springs at least once a year. Again, this is not from personal experience, but I have spent the last 2 months intensively researching the G5X cams
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Jersey I am doing the same thing. My spead sheet is getting 
G5X2 232/240 595/608 112/114 rpm range3500-7000 rwtq/rwhp 406/432
G5X3 2xx/2xx 600/610 112/114 rpm range3500-7000 rwtq/rwhp 387/444
G5X2 232/240 595/608 112/114 rpm range3500-7000 rwtq/rwhp 406/432
G5X3 2xx/2xx 600/610 112/114 rpm range3500-7000 rwtq/rwhp 387/444
Melting Slicks
Joined: Dec 2005
Posts: 2,291
Likes: 0
From: sterling ct
what good is a cam that makes peek power at 7k, isnt the c5 done at 6500??? that is about as beneficial as someone who flows a head at 380cfm at 650 lift and you run a 580 lift cam.....who cares what the peak is if you dont benefit from it.
Drifting
Joined: Jan 2003
Posts: 1,277
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From: Springfield MO
St. Jude Donor '05
Originally Posted by AU N EGL
that is why I am looking for a cam that has great low end torque to get me out of corners ASAP and UP TO 150 MPH.
2000 to 6000 rpm range.
2000 to 6000 rpm range.
Texas Speed Cams
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Racer
Joined: Apr 2005
Posts: 466
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From: Greenville NC
I run the G5X3 cam with AFR205 heads, and they performed really well on the track- was able to hit 150mph in the back striaght at VIR with 430rwhp/392rwtq 
I just got finished building a 383 stroker motor, so the cam is even more streetable and the tq gain is awesome- I'm lookin foward to getting back on track with the new motor
I just got finished building a 383 stroker motor, so the cam is even more streetable and the tq gain is awesome- I'm lookin foward to getting back on track with the new motor
"AlohaC5" Senior Member
Joined: Jun 2003
Posts: 3,562
Likes: 44
From: Madison, AL
I have the Futral F13 cam in my 383 stroker that is mentioned in the LS1tech link that AU N AGL provided above for the primary purpose of road racing (HPDE/TT) events. This cam appears to be one of the best performing cams for road racing (not drag racing) based on my research on LS1tech. 230"/232" .595"/.585" 114LSA - aggressive profile with a 2500-6800 RPM range. However, the TSP-233 233/239 595/603 113 sure sounds interesting! Anyone running this cam that can post their dyno graph?
Last edited by Gray Ghost GS; Jan 26, 2006 at 12:00 PM.
Pro
Joined: Jul 2005
Posts: 639
Likes: 2
From: chattanooga Tennessee
I had the G5x3 In my car and I made 450+rwhp and418 rwtq And that was with a 205cc Runner with 2.o5 Valve set-up with a ls6 Intake and a good tune..
Now I have the G5x4 and about to get the car back as we speak.. But I have changed the Intake and bottom-end also, But my set-up is for drag racing..
Now I have the G5x4 and about to get the car back as we speak.. But I have changed the Intake and bottom-end also, But my set-up is for drag racing..
Last edited by OneBadCEZo6; Jan 25, 2006 at 07:28 PM.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Originally Posted by ecudooberhead
I run the G5X3 cam with AFR205 heads, and they performed really well on the track- was able to hit 150mph in the back striaght at VIR with 430rwhp/392rwtq
I just got finished building a 383 stroker motor, so the cam is even more streetable and the tq gain is awesome- I'm lookin foward to getting back on track with the new motor
I just got finished building a 383 stroker motor, so the cam is even more streetable and the tq gain is awesome- I'm lookin foward to getting back on track with the new motor
I run about 400 rwhp and 405 rwtq now.
I like Alohas set up too.
